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Finding the Fourth Proportional to 72,099.15, 108,148.97 and 22,178.91

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Solution

The fourth proportional to 72,099.15, 108,148.97 and 22,178.91 is: 33,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.15 : 108,148.97 = 22,178.91 : x
  2. Step 2: Convert to fraction form
    72,099.15/108,148.97 = 22,178.91/x
  3. Step 3: Cross multiply
    72,099.15x = 108,148.97 × 22,178.91
  4. Step 4: Simplify right side
    72,099.15x = 2,398,626,272.22
  5. Step 5: Solve for x
    x = 2,398,626,272.22/72,099.15
  6. Step 6: Final answer
    x = 33,268.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.